来自MSN28 天
Have you ever wondered why train tracks have stones? Here’s the answer
Track ballast refers to the sharp stones on the railway tracks. They are filled around the railway tracks. These stones are used to keep the railway tracks straight and properly spaced.
Railway Technology1 个月
Tensar Ballast Reinforcement Reduces Track Maintenance Costs
Tensar International reveals new data proving the ballast reinforcing benefits of its stiff polymer geogrids at RailTex 2007. The recent research conducted by Nottingham University and Network Rail ...